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Originally Posted by mohit
@kniwor
i have a doubt .. ru sure that an amd athlon64 3000+ s939 1.8 ghz will have the same perfomance as an amd athlon64 3000+ s754 2.0 ghz ??
i was reading the specs here ,
http://www.amd.com/us-en/Processors/ProductInformation/0,,30_118_9485_9487^10248,00.html
and i saw there is a lot of diff between the s939 and s754 proccs like in terms of memory controller width , total procc to system bandwidth , hyper transport technology etc . how can the perfomance of both the sockets be same then ?? plz clarify. thanx.
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that link is not working.....
anyhow good that u asked....
Firstly...
I am sure of what i said
we know that clock speed is not the determining factor in the overall performance of the entire system...s754 is not as good as s939...for ex. the Hypertransport in s754 is 800Mhx max but in 939 it is 1000Mhz...also there is a difference is memory controller...For this reason..If we consider 2 processors...with clock speed 2.0 Ghz...same L2 cache then the processor on s939 will perform better than the processor on socket 754 inspite of the fact that we have taken processors on same artitecture...because there is difference as mentioned above....The rating system of AMD is such that if it it rated 3000+ then it is based on the performance of the system...Now it is obviously evident that to match the performance of a 1.8Ghz processor on s939 on s754 we will need a processor of higher speed...we find that a processor of 2.0Ghz on s754 gives that performance....and hence AMD has rated it this way....
I once again want to clarify that this DOES NOT mean that all the AMD 3000+ processors have the same performance....but all the 3000+ of the same class have the same performance...irrespective of socket..L2 cache etc..